4256881177 has 4 divisors (see below), whose sum is σ = 4258114596. Its totient is φ = 4255647760.

The previous prime is 4256881169. The next prime is 4256881241. The reversal of 4256881177 is 7711886524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1542054361 + 2714826816 = 39269^2 + 52104^2 .

It is a cyclic number.

It is not a de Polignac number, because 4256881177 - 2³ = 4256881169 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4256881177.

It is not an unprimeable number, because it can be changed into a prime (4256881127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611518 + ... + 618439.

It is an arithmetic number, because the mean of its divisors is an integer number (1064528649).

Almost surely, 2^4256881177 is an apocalyptic number.

It is an amenable number.

4256881177 is a deficient number, since it is larger than the sum of its proper divisors (1233419).

4256881177 is a wasteful number, since it uses less digits than its factorization.

4256881177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233418.

The product of its digits is 752640, while the sum is 49.

The square root of 4256881177 is about 65244.7789252136. The cubic root of 4256881177 is about 1620.6796387503.

The spelling of 4256881177 in words is "four billion, two hundred fifty-six million, eight hundred eighty-one thousand, one hundred seventy-seven".